The automatic night lamp breadboard project using an LDR (Light Dependent Resistor) is a simple electronic circuit that automatically turns on a lamp or an LED light when it detects darkness or low light conditions. The project utilizes an LDR, which is a type of resistor whose resistance decreases as the amount of light falling on it increases.
- LDR: The LDR is the main component of the project. It acts as a sensor to detect the ambient light conditions.
- Resistor: A resistor is connected in series with the LDR to form a voltage divider circuit. The resistor helps in controlling the sensitivity of the LDR.
- Transistor: A general-purpose NPN transistor, such as the BC547, is used as a switch in this circuit.
4. LED: The lamp or LED is the output device that will be turned on automatically when it gets dark.
5. Power supply : The circuit requires a power supply, usually a 9V battery or a DC power adapter, to provide the necessary voltage.
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